How to use QtWebkit with geolocation?

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It is possible to use geolocation in Desktop applications with QWebView?

I tried set PermissionGrantedByUser, but not work:

void WebPage::permissionRequested(QWebFrame* frame, Feature feature)
{
    switch (feature) {
        case Geolocation:
            qDebug() << "GEO-Location: PermissionGrantedByUser";
            setFeaturePermission(frame, feature, PermissionGrantedByUser);
        break;
        default:
            qDebug() << "";
    }
}

void WebPage::permissionRequested(QWebFrame* frame, Feature feature)
{
    switch (feature) {
        case Geolocation:
            qDebug() << "GEO-Location: PermissionGrantedByUser";
            setFeaturePermission(frame, feature, PermissionGrantedByUser);
        break;
        default:
            qDebug() << "";
    }
}

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• I tried add this QT += positioning, but not work
• I tried add this TARGET.CAPABILITY += NetworkServices Location, but not work, I believe this is for smartphones, like Symbian.

Event displayLocation and watchPosition are never fired and using {timeout: ...} it shows the message Timeout expired:

<script>
function displayError(err) {
    document.getElementById("geo").innerHTML = ("Error Code: " + err.code +
        " / msg: " + err.message);
}
 
function displayLocation(position) {
    document.getElementById("geo").innerHTML = [
        "latitude:" + position.coords.latitude,
        "longitude:" + position.coords.longitude
    ].join(", ");
}
 
function getMyLocation() {
    if (navigator.geolocation) {
        navigator.geolocation.watchPosition(function(a, b, c) {
            console.log(a, b, c);
            document.getElementById("geo").innerHTML = "Testando...";
        });
        navigator.geolocation.getCurrentPosition(displayLocation, displayError, {
            enableHighAccuracy: false,
            timeout: 10000,
            maximumAge: 0
        });
    } else {
        document.getElementById("geo").innerHTML = "No geolocation support";
    }
}
 
window.onload = function() {
    getMyLocation();
};
</script>
<div id="geo"></div>

<script>
function displayError(err) {
    document.getElementById("geo").innerHTML = ("Error Code: " + err.code +
        " / msg: " + err.message);
}

function displayLocation(position) {
    document.getElementById("geo").innerHTML = [
        "latitude:" + position.coords.latitude,
        "longitude:" + position.coords.longitude
    ].join(", ");
}

function getMyLocation() {
    if (navigator.geolocation) {
        navigator.geolocation.watchPosition(function(a, b, c) {
            console.log(a, b, c);
            document.getElementById("geo").innerHTML = "Testando...";
        });
        navigator.geolocation.getCurrentPosition(displayLocation, displayError, {
            enableHighAccuracy: false,
            timeout: 10000,
            maximumAge: 0
        });
    } else {
        document.getElementById("geo").innerHTML = "No geolocation support";
    }
}

window.onload = function() {
    getMyLocation();
};
</script>
<div id="geo"></div>

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I believe that I have to build a library and put in the qtDir/compiler/plugins/position

How can I do this?

Or is it possible to customize the event and send coordinates of a 3rdparty lib (I'm not asking for a library and I'm not asking for alternatives in javascript) in response to the navigator.geolocation.getCurrentPosition?

Extra info about

If use QT_DEBUG_PLUGINS=1 in debug mode Application Output return this (note that the first line is generated by WebPage.permissionRequested):

GEO-Location: PermissionGrantedByUser
QFactoryLoader::QFactoryLoader() checking directory path "C:/Qt5.4.0/5.4/mingw491_32/plugins/position" ...
QFactoryLoader::QFactoryLoader() looking at "C:/Qt5.4.0/5.4/mingw491_32/plugins/position/qtposition_positionpoll.dll"
Found metadata in lib C:/Qt5.4.0/5.4/mingw491_32/plugins/position/qtposition_positionpoll.dll, metadata=
{
"IID": "org.qt-project.qt.position.sourcefactory/5.0",
"MetaData": {
"Keys": [
"positionpoll"
],
"Monitor": true,
"Position": false,
"Priority": 1000,
"Provider": "positionpoll",
"Satellite": false
},
"className": "QGeoPositionInfoSourceFactoryPoll",
"debug": false,
"version": 328704
}


"The plugin 'C:/Qt5.4.0/5.4/mingw491_32/plugins/position/qtposition_positionpoll.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)"
not a plugin
QFactoryLoader::QFactoryLoader() looking at "C:/Qt5.4.0/5.4/mingw491_32/plugins/position/qtposition_positionpolld.dll"
Found metadata in lib C:/Qt5.4.0/5.4/mingw491_32/plugins/position/qtposition_positionpolld.dll, metadata=
{
"IID": "org.qt-project.qt.position.sourcefactory/5.0",
"MetaData": {
"Keys": [
"positionpoll"
],
"Monitor": true,
"Position": false,
"Priority": 1000,
"Provider": "positionpoll",
"Satellite": false
},
"className": "QGeoPositionInfoSourceFactoryPoll",
"debug": true,
"version": 328704
}


Got keys from plugin meta data ("positionpoll")
QFactoryLoader::QFactoryLoader() checking directory path "C:/projects/webview-example/debug/position" ...